Improvement in steami-boilers



3 Sheets-Sheet 2.

T. lW. GODWIN.

STEAM-Boum.

Patented Nov.z,1s`15.

INVENTOR, WM M/ghn@ ATTORNEYS PETERS. PMOTO-LITHRAPHER. WASHINGTON. D C.

3 Sheets-Sheet 3.

T. W. G'oDWIN.

STEAM-BOILER.

Patented Nov Z, 1875.

mvENToR WITNESSES 915m Maf@ ATTORNEYS A NFTERS, PHOTO LITHOGIAFNH WASH NGTON D C THOMAS WL GODVIN, OF NORFOLK, VIRGINIA.

IMPROVEMENT IN STEAM-BOILERS.

Specification forming part of Letters Patent No. RGQASQ, dated November 2, 1875 application filed october 21, 1s75."`

To all whom it may concern:

Beit known that I, THOMAS W. GODWIN, of Norfolk, in the county of Norfolk and State of Virginia, have invented a new and valuable Improvement in Steam-Boilers 5 and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference heilig had to the annexed drawings, making a part of this specification, and to the letters and ligures of reference marked thereon.

Figures l and 2 of the drawings are representations of vertical sections ot' my steamboiler improvement, and Fig. 3 is a planl view of the same. Fig. 4 is a plan view of the water-chamber.

Thisinven tion has relation to upright steamboilers, which are especially designed for use in cotton factories and gins, l'or the purpose of guarding' against tire from escaping sparks 5 and the nature of my invention consists in an upright boiler having a spark-trap at its base, in combination with a recessed cap having projecting flanges, which dedect the products of' combustion, causing them to pass in a devious course downwardly through a series of vertical tubes into a spark-trap tlled with Water, which extinguishes thev sparks, the products of combustion passing thence upwardly through a series of vertical tubes into a chamber, and thence through an eductionpipe into the open air, as hereinafter more fully set forth.

In the'annexed drawings, A designates the cylindrical shell or casing of my upright boiler, and a al'az are the three flue-sheets. B designates the furnace-chamber, between which and the'ash-pit O are the grate-bars b. From the furnace-chamberB the products of combustion ascend through a cluster of lilies, D, into a chamber, c, Which is formed by a casting, E, supported upon the due-sheet al. E (see Fig. 3) is a recessed cap provided with flanges m m, the lower edges of which rest on the top ofthe boiler. The products of combustion pass upwardly from the furnace through the central tubes, and, when the damper g is closed, pass down through the vertical tubes included between the flanges into the sparktrap, illed with Water, which extinguishes the sparks, the products of combustion passing thence upwardly through the tubes J, outside of the flanges ofthe cap, and thence through the pipe K into the open air. F designate lues, which conduct the products of combustion from the chamber c down into a water receptacle or trap, G, formed in the base of the boiler, outside of the ashvpit C. rIhe tubes or tlues F are secured to the liuc-sheets al a2, and cause the sparks to dive down into water in the chamber G, where they are extinguished. From the chamber G the products of conilbustion ascend through tubes or lines J into a chamber, H, from which they are carried oft' through a pipe, K.

In practice I shall make an the casting E, and provide it with a damper, g, which, when opened, will .give a direct draft from the furnace to the stack. This damper will also allow me to regulate the draft of the furnace. l

It will be seen from the above description that I not only1 utilize the heat by conducting the products ot combustion three times through the water-space, butlI also insure the extinguishmeixt ot all the sparks.

What I claim as new, and desire to secure by Letters Patent, is-

The recessed cap E, havin g projecting lian ges m m and damper g, in combination with the tubes D F J, spark-trap G7 and chamber C, substantially as described, and for the purpose set forth.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

THOS. W. GODWIN. Witnesses:

WALTER C. MASI,

BRYAN H. MORSE.

opening' thron gh i 

